Question

explain the bonding in coordination compounds in the terms of werners theory​

Answer 1

Explain the bonding in coordination compounds in terms of Werner's postulates. ... (i) In coordination compounds metals show two types of linkages (valencies) - primary and secondary. (ii) The primary valencies are normally ionisable and are satisfied by negative ions. (iii) The secondary valencies are non-ionisable.

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Answer 2

Postulates of Werner's coordination theory:

(1) Metal shows primary valence (ionizable, oxidation number) and secondary valence (non ionizable, coordination number).

(2) Coordination number (secondary valence) is fixed for every metal.

(3) Negative ions satisfy primary valence and negative ions or neutral molecules satisfy secondary valence.

(4) Secondary valencies are directional in nature and determine stereochemistry of complex.